$fn=25;

module smoother() {
    polyhedron(points = [
        [100, 5, 0], [70, 7.5, 0], [0, 7.5, 0],
        [0, -7.5, 0], [70, -7.5, 0], [100, -5, 0],
        [100, 5, 1], [70, 7.5, 5], [0, 7.5, 5],
        [0, -7.5, 5], [70, -7.5, 5], [100, -5, 1],
    ],
    faces = [
        [0, 1, 7, 6], [1, 2, 8, 7],
        [2, 3, 9, 8],
        [5, 0, 6, 11],
        [0, 1, 2, 3, 4, 5],
        [6, 7, 10, 11], [7, 8, 9, 10],
        [5, 4, 10, 11], [4, 3, 9, 10],
    ]);
}

minkowski() {
    smoother();
    sphere(r=0.5);
}
